Chair, seat and the like



' May 24, 1932. F. |-|v HEADLEY CHAIR, SEAT, AND THE LIKE 2 Sheets-Sheet 1 Filed Nov. 3, 1928 May 24, 1932. F. H. HEADLEY CHAIR, SEAT, ANDTHE LIKE 2 Sheets-Sheet 2 Filed Nov.3, 1928 tion and elevation; N g n lThe present invention has for its object to. provide back-rest orsupport mechanism 'having a simple and unified'form ofadjustment .Patented May 24,1932 V FREDEBiCK HAGGER ;HE;DLEY, F"-,1aTHF1Em,*Biammmm;ENcLAnD} Armin:

I BowDEN 'HE DLEYQ 'rixirzou'raix on1 S ID FRED-ERICK fleecing H ADLEDIE-'1 cEAsEn, ASSIGNOR T0 rHE'rAnsAn CHAIR coM'rAnY (1931) LI1YIIT7ED,E BIRM NG- I HAM, ENGLAND, B I N 1 FCHAIRQ AND THE LIKE 1 App fil N r 3;1928, s r i-a 'm- 3 7 045, again 'G reatiZBritain February 20; 1929.5; s

The present invention has }relation to chairs,lseats or the like, moreparticularlythe back-restsor back supports jthereof. Backrests orsupports for chairs,seats,or the like' have previously been proposed of?fiIlttClJllStable character both with regard to inclinamechanism whichwill permit of a particularly speedy and secure settiug' of theback-rest or support proper in the desiredpos tion.

In order that this invention may be clearly understood and readilycarried into practice,

reference may be had to the-appended explanatory' sheet of drawings,upon wh1ch y v Figure l'saperspective viewof a seat incorporatingadjustable clamping mechas nism for the back-rest constructed accordingto the present invention. u I r u Figure 2 is a sectional plan viewtaken horizontally through the clamping mechanism shown in-Figure 1. r

taken on the line 3+3 of Figure 2. 7 i Figure 4 is a sectional viewcorrespond ng to'that shown in Figure 2 only of a modificau p rhorizontal axis for small automatic adjust-i Figure 3 is a transverseSectional elevation tion of the present invention.

Figure 5 is a transverse sectional elevation 1 taken on the line 55 ofFigure it.

In that embodiment of the present'invention illustrated in Figures 1, 2'and3, the seat a (Figure 1) is provided on its underside witha frame Z)(Figure 2) having rearwardly extending, laterally spaced arms 0 and (Zroespectively. Attached to the arm c is an annular radially serratedelementc which is adapted to co-operate with an oblong ser rated element7 having a'channel or slideway /"1 and a boss f2rotatable in a blindaperwith a wooden liner." This post 9 is adapted to slide in thechannelor slide-way f1 and'is operable by means of a hand-screw member2' p p I k arm d between thepos't'gand the hand-screw operating in atapped aperture in the arm d.

between 1 corresponding. movemen said backrest or s' i.1pport, ''v i. 'J

1 he.postgmay.carry atitsiipper extremity, i v a' forked-memberf glwherein the back-rest 'ment purposes.

lnoperatiominr order tdadjiist rear- T post g seized by the hand;Thealrmcan'then be slidvertically its channel fl; and itcan" g 1 also berotated; on laccount of the serrated faces being disengaged bythe-spring j; That is rfi r n b are capable of a' universal movement ina fixed plane NVhen; I adj ustment'has been obtained, the

justment. It will be hand-screw, i1 tightenedtofefl'ectively secure theparts in their new, position of ada 1 1-; I -i ties e e -t ref eft y:,the manlpulation ofasingle hand screw, a universal adjustmentof theback may; b b." 7

tained,that:is to say, an a'djustment both with respect to inclinationof the supporting post obtaining forward and: rearward movement of theback-'rest'or support,.a nd-thever-V tical adjustment of the said postobtaining a h is adapted to swivel or pivot as at 92 on a i In thatmodification of the av tar 11- lustrate d in" Figures 4 and 5, thepartf'blis V attached to the underside of the seat a1 and- 1 is providedas l1ereinbefore with the arms" 0, (Z. The armjcha's atta'ched'thereto aplate ehaving aplu ality' rradiarsermuonsmnd alsocarries a bolt is Whichis keyed as at k1 against' rotation, The lowerpart of the supportingpost 9 inthisumodification, is V I00 to, accommodate the bolt k,andfsaid post 9 fis itself a'ccommodated'in av channel fZ-in'aslow d swas e l 'yFi'gure' 5,

Serrated plate member fmounted. upon the boltfie which"iscomplementaryto the plate e 7 sio flspnng tending to sparatethe comple--' securedtoflthe arm a. "j isa coiled compres tance piece'operati'ngjn apertureinfthe In the operation of this modification, in

order to adjust the backthe handscrew m is unscrewed, and the post 9being seizedrby the hand can be slidingly-adjusted in the channelf2,-and/or"rotated with the member f inasmuch as the serrated faces aredisengaged by the spring" 9'.

'cured intheirpos'ition of adjustment (Fig ure 4) by'tightening' thehand-screw m.

The parts are .se

n 1s a peg or projectionbn the stationary plate 6 which may be providedfor the purpose of limiting the rearward pivotal movement of the post gby contacting the complementaryoplatei and thereby preventing theback-rest from falling rea-rwardly towards the greund.- v I I claim asmy invention chair embodying therein" a -inember I having laterallyspaced a'rms, one of which has radial serrations there0n',a devicehaving a gdidechannel on one face andradial serrations-on the other facedisposed betweensaid arms, means providing a pivotal con-- nection forsaid devicefwith respect tosaid' arms, a backrest supporting post:lon'gitndi V nally adjustable in said guide channel and means arrangedaxially of said device and disposed'in'partupcn the othergside of theother arm for clamping said postto said "dc- 3O said first mentionedarm.

vice and for clamping said device: against 2. A chair embodying thereina member ;having laterally spaced arm's,"one of which has r'a-dialserrations thereom-a device havding agu'rde channel on "one faceandradial serrations on the other face disposed between said arms, meansproviding a pivotal connection for said device with respect to saidarms,

a back resii supporting post Y longitudinally arm with the serrationsthereon ar'id a and said device.

adjustable in said guide channel, means 'arranged axially of said deviceand disposed in V the other arm for clamping said post to said deviceand for part upon the other side of to said first mentioned I springinterposed between said first mentlone" clamping said devicelongitudinally adjustably mountedv on said Y device and means betweensaid first mentioned. arm and said device normally urging said deviceawayfromsai-d arm and a rotatable member'threadedin the other arm forengagementwith said 'post againstthe' action of said last mentionedmeanS'toclam P I said post tosaid device" and to hold 'tliesa'id deviceagainst thezfirst, mentioned arm and against rotation with respect:thereto. I

' first mentioned arm; Y

-6. A- chair embodying'therein a-member having laterally spaced arms, adevice positioned between said arms and having a guide channel, meansproviding apivotal-con'necm tion for saidjdevices with respect to oneof, said arms, a back rest post disposed. in said guide channel for Vlongitudinal adjustment, said oneof-said arms'andsaid device havinginterengaging "parts" for:v determining tlie3t95 V angularpositionofsaid device relative to said one of said arms and meansdisposed in the other of said arms coincident with the axis of saiddevice for clamping the back rest post in said channel an-d forclampingliwo said device to said one of'saidarms. I In 'witness whereofI have hereunto set my hand. 7 I 1 V I FREDERICK QUEER HEADLEY.

3.Ajchair embodying therein a seat, a

pair of laterally spaced arms projecting to the rear of said seat, adevice associated with I -one of said arms and rot'ative with 're'spectthereto, said device and arm having radial finterengaging part-sthereon, a seat post 1011- gitudin'ally adjustab ly mounted on said de-7 vice and'a rotatable member threaded in the other arm for engagementwith said post to clamp said post to said device and to hold said deviceagainst the first mentioned arm m and against rotation withrespectthereto.

i. A chair embodying thereina' seat, a pair of laterally spaced armsprojecting to the rear of said seat, a device associated with one ofsaid arms and rot'ative with respect thereto, said device and arm havingradial I interengaging parts thereon, a seat post

